JBL STUDY GUIDE FOR MOD 1 EXAM 2025/2026 | ACTUAL
COMPLETE ALL REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS )| ALREADY GRADED A+ |
NEWEST EXAM .
What is a characteristic of a fog stream? - ANSWER-it creates
water droplets with a large surface area
What is an advantage of a straight stream over a fog stream? –
ANSWER-longer reach
What is the most frequently used hose line for interior attack? -
ANSWER-1 3/4" What is the target of the hose stream in a direct
attack? - ANSWER-the base of the fire
Which firefighting attack, if successful, will result in the least
amount of property damage? - ANSWER-offensive
The kern of a kernmantle rope is its __________. - ANSWER-
Core
,The pressure in a system when no water is flowing is called
________ pressure. - ANSWER-static
The pressure remaining in a water distribution system when
water is flowing is the ________ pressure. - ANSWER-residual
The volume of water that is being moved through a pipe or
hose is termed the
__________. - ANSWER-Flow
What is the decrease in pressure that occurs as water moves
through a hose? - ANSWER-Friction Loss
What is the term for the large discharge opening on a fire
hydrant? – ANSWER-Steamer Port
What should be done to avoid water hammer? - ANSWER-Open
Valves Slowly
When charging a supply line at a hydrant, the fire fighter should
__________. - ANSWER-Avoid standing between the hose line
and the Hydrant
When referring to hose, what does the "L" stand for in "LDH"? -
ANSWER-Large
,When should the fire fighter at the hydrant charge the supply
line? – ANSWER-upon receiving the signal from the
driver/operator
When water is motionless, which kind of energy does it have? –
ANSWER-potential
Where are dry-barrel hydrants typically used? - ANSWER-cold
climates
Which NFPA standard covers fire hose? - ANSWER-1962
Which of the following is one of the three factors that determine
friction loss? - ANSWER-hose diameter
Which size of coupling are the outlets on most fire hydrants
sized to fit? - ANSWER-2 1/2 inch
Which type of hose coupling does not have male or female
ends? – ANSWER-storz
In a jacketed fire hose, which function does the outer jacket
serve? – ANSWER-it adds strength which allows the hose to
withstand water pressure
, A hose adaptor connects two hose sections of __________. -
ANSWER-equal diameter but different threads
Which item is used to attach a smaller hose to a larger one? –
ANSWER-reducer
Which valve is opened or closed by rotating a handle a quarter
turn? - ANSWER-butterfly valve
Which coupling goes on the inside of a straight hose roll? -
ANSWER-male
An engine lays hose from a water source to the fire scene in a
__________ lay.
- ANSWER-forward
When should the fire fighter at the hydrant charge the supply
line? – ANSWER-when the driver/operator calls for water
What is a function of a hose liner? - ANSWER-reduce friction
loss
Couplings are tightened and loosened with a __________
wrench. – ANSWER-spanner
COMPLETE ALL REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS )| ALREADY GRADED A+ |
NEWEST EXAM .
What is a characteristic of a fog stream? - ANSWER-it creates
water droplets with a large surface area
What is an advantage of a straight stream over a fog stream? –
ANSWER-longer reach
What is the most frequently used hose line for interior attack? -
ANSWER-1 3/4" What is the target of the hose stream in a direct
attack? - ANSWER-the base of the fire
Which firefighting attack, if successful, will result in the least
amount of property damage? - ANSWER-offensive
The kern of a kernmantle rope is its __________. - ANSWER-
Core
,The pressure in a system when no water is flowing is called
________ pressure. - ANSWER-static
The pressure remaining in a water distribution system when
water is flowing is the ________ pressure. - ANSWER-residual
The volume of water that is being moved through a pipe or
hose is termed the
__________. - ANSWER-Flow
What is the decrease in pressure that occurs as water moves
through a hose? - ANSWER-Friction Loss
What is the term for the large discharge opening on a fire
hydrant? – ANSWER-Steamer Port
What should be done to avoid water hammer? - ANSWER-Open
Valves Slowly
When charging a supply line at a hydrant, the fire fighter should
__________. - ANSWER-Avoid standing between the hose line
and the Hydrant
When referring to hose, what does the "L" stand for in "LDH"? -
ANSWER-Large
,When should the fire fighter at the hydrant charge the supply
line? – ANSWER-upon receiving the signal from the
driver/operator
When water is motionless, which kind of energy does it have? –
ANSWER-potential
Where are dry-barrel hydrants typically used? - ANSWER-cold
climates
Which NFPA standard covers fire hose? - ANSWER-1962
Which of the following is one of the three factors that determine
friction loss? - ANSWER-hose diameter
Which size of coupling are the outlets on most fire hydrants
sized to fit? - ANSWER-2 1/2 inch
Which type of hose coupling does not have male or female
ends? – ANSWER-storz
In a jacketed fire hose, which function does the outer jacket
serve? – ANSWER-it adds strength which allows the hose to
withstand water pressure
, A hose adaptor connects two hose sections of __________. -
ANSWER-equal diameter but different threads
Which item is used to attach a smaller hose to a larger one? –
ANSWER-reducer
Which valve is opened or closed by rotating a handle a quarter
turn? - ANSWER-butterfly valve
Which coupling goes on the inside of a straight hose roll? -
ANSWER-male
An engine lays hose from a water source to the fire scene in a
__________ lay.
- ANSWER-forward
When should the fire fighter at the hydrant charge the supply
line? – ANSWER-when the driver/operator calls for water
What is a function of a hose liner? - ANSWER-reduce friction
loss
Couplings are tightened and loosened with a __________
wrench. – ANSWER-spanner
